Green’s Dictionary of Slang

1. (US gay) a male homosexual.

1972		‘R. Cummings’ Bath Buddy 33: [I] would have gone on to serious rimming if my buzzer didn’t shout, ‘Fuck him!’ [Simes:DLSS].
1975		‘S. West’ Hard-headed Dick 41: I exerted a little more pressure on his most sensitive spots, bung and buzzer [Simes:DLSS].

2. a male homosexual.

1995–2003

P. Kidd ‘Words for Gay Men’ on Buggery.org 🌐 buzzer.